Alright, let's work through 6879 times 1764 step by step
6879 × 1764 = 1764 × (6879)
+ 1764 × 9 what gives us 15876
+ 1764 × 70 that is equal 123480
+ 1764 × 800 yielding 1411200
+ 1764 × 6000 giving us 10584000

= 12134556
